18961997390

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{3539}}^1\times {\mathrm{76543}}^1$

素因数の和:80096

約数の個数: 32

約数和(自身を含む): 39019069440

約数和(自身を除く): 20057072050

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 3539, 7078, 17695, 24773, 35390, 49546, 76543, 123865, 153086, 247730, 382715, 535801, 765430, 1071602, 2679005, 5358010, 270885677, 541771354, 1354428385, 1896199739, 2708856770, 3792399478, 9480998695, 18961997390]

約数ペア:

[(1, 18961997390), (2, 9480998695), (5, 3792399478), (7, 2708856770), (10, 1896199739), (14, 1354428385), (35, 541771354), (70, 270885677), (3539, 5358010), (7078, 2679005), (17695, 1071602), (24773, 765430), (35390, 535801), (49546, 382715), (76543, 247730), (123865, 153086)]